System Cleanup

All-in-One Cleaner

2021-10-20

CCleaner: Cache Cleaner, Phone Booster, Optimizer (4.7@2,234,847) Ǥ 34 12 Datenschutz-Test 8/2020:
Norton Clean, Junk Removal (4.6@214,677) 16 2
1Tap Cleaner (clear cache, and history log) (4.5@52,488) Ǥ 16 4 / 1Tap Cleaner Pro (clear cache, history log) (4.8@3,628; ~EUR 3.00) Ǥ 17 1
Assistant for Android (4.4@302,224) 26 3 / Assistant Pro for Android - Cleaner & Booster (3.9@9,939; ~EUR 1.00) Ǥ 27 $Contains no trackers known to us \o/$ incl. system info, process info, power saver
Easy Cleaner - Clear Cache (4.4@127,267) 12 6
Clean Droid - 1 Tap Clear Cache & Phone Cleaner (4.4@23,651) Ǥ 22 5
Droid Optimizer (4.3@59,872) Ǥ 27 4
History Eraser - Privacy Clean (4.2@210,444) Ǥ 12 12 LastUpdate: 2020-03-11 / History Eraser Pro - Clean up (3.7@5,229) Ǥ 19 3 LastUpdate: 2019-03-08
Cleaner (4.2@20,027) 7 1 LastUpdate: 2017-11-14
WashAndGo Mobile Cleaner (3.9@1,380) Ǥ 11 4 LastUpdate: 2020-04-07 Vorstellung 4/2016
Th3app - History Cleaner and Booster (3.8@32) 6 1 LastUpdate: 2020-03-09
Glary Utilities (3.2@9,160) 32 $Contains no trackers known to us \o/$ LastUpdate: 2020-02-18

History Cleaner

2021-10-20

This is more about privacy than freeing up space.

Here the focus is to reclaim space. Note: if you are on Android 6.0 or newer, you don't need an extra app to clean caches. Go to Settings › Storage & USB › Internal storage and click on Cached data in order to clear all the cache.

Orange Cache Cleaner (4.6@11,377) 7 4 LastUpdate: 2017-06-24
App Cache Cleaner (4.3@210,231) 7 10 LastUpdate: 2018-12-11
Cache Cleaner Super clear cache & optimize (4.3@42,922) 9 5 LastUpdate: 2020-02-16
Clean Cache (4.2@11,588) Ǥ 12 1 LastUpdate: 2018-01-12
SLW Cache Cleaner Widget (4.2@2,125) 2 $Contains no trackers known to us \o/$ LastUpdate: 2013-01-04
Cache Cleaner Made In India Junk Cleaner (4.1@3,928) 7 3
Smart Cleaner (4@1,253) Ǥ 8 3 LastUpdate: 2019-04-05
Cache Cleaner (3.7@5,687) 5 $Contains no trackers known to us \o/$ LastUpdate: 2017-04-04 Github
Cache Cleaner (3.7@162) 11 3 LastUpdate: 2017-05-12
Cache Cleaner (3.4@113) Ǥ 14 4 LastUpdate: 2017-08-25
Cache Cleaner (3.3@3,973) 5 $Contains no trackers known to us \o/$ LastUpdate: 2013-07-15

Other System Cleaner

2021-10-20

Simple Cleanup (5@1) 2 $Contains no trackers known to us \o/$ LastUpdate: 2019-06-14 Github
AVG Cleaner – Junk Cleaner, Memory & RAM Booster (4.7@1,546,191) Ǥ 34 12 Vorstellung 9/2015; no idea what for it needs change network, access accounts, send SMS … is that where the cleaned data go to?
Avast Cleanup & Boost, Phone Cleaner, Optimizer (4.7@1,133,143) Ǥ 34 12 According to the permissions, it also cleans the insides of your network cables, your kitchen, and a few other things… and posts its findings on Facebook. Or something like that…
SD Maid - System Cleaning Tool (4.3@270,452) Ǥ 20 2 / SD Maid Pro - Unlocker (4.4@30,896; ~EUR 3.50) Ǥ 1 $Contains no trackers known to us \o/$ LastUpdate: 2020-03-17 Test 6/2015; Review 3/2017; Video Review 6/2017; Wiki; Github; root required to unleash full potential
SystemCleanup (4.3@3,694) 3 $Contains no trackers known to us \o/$ LastUpdate: 2017-06-14
LTE Cleaner (4.2@664) 8 2 Github
Empty Files & Folders Cleaner PRO (4.1@410; ~EUR 2.25) Ǥ 4 $Contains no trackers known to us \o/$ Video Intro 8/2019

Further Readings:

Apps gecheckt: Die Lügen der Systemreiniger (2/2021)
Video: Apps gecheckt: Systemreiniger-Apps | mit u.a. CCleaner, Avast Cleanup, App-Tipp: SD Maid (2/2021)
Video: Was bringen Cleaner-Apps? App-Tipp: SD Maid (8/2020)
10 Best apps to free up space on your Android phone (3/2020)
How to Clear Cache on Android (And Why You Should) (11/2019 - 12/2020)
5 Android Apps That Really Clean Up Your Device (No Placebos!) (7/2019 - 11/2020)
Samsung Galaxy S8 neuen Schwung geben - ohne Werksreset (6/2018; also valid for other devices)
Android-Speicher voll: So räumt Ihr das Smartphone auf (5/2014 - 5/2021)

2021-10-21

IzzyOnDroid

System Cleanup

All-in-One Cleaner

History Cleaner

Cache Cleaner

Other System Cleaner